Ultrasonic machining device, method for configuring an ultrasonic machining device, and system having an ultrasonic machining device of this type

ABSTRACT

An ultrasonic machining device ( 1 ) for machining a workpiece. At least one component, selected from the group including a generator ( 11 ), a converter ( 12 ), a booster ( 13 ), a sonotrode ( 14 ), a HV cable ( 15 ), a machine frame ( 16 ) and a receiving device for the workpiece ( 17 ), is/are assigned an identifier ( 18 ). The identifier ( 18 ) characterizes at least one individual parameter of the component. The device ( 1 ) is assigned an input interface ( 19 ) which reads in the identifier ( 18 ) or generated data from the identifier. The device ( 1 ) is assigned a data processing arrangement ( 20 ). By way of the data processing arrangement ( 20 ), based on the read-in identifier ( 18 ) or the data generated from the identifier ( 18 ), at least one parameter of the device ( 1 ) is determined in such a way that the device ( 1 ) is operated in a target operating state, e.g., a resonant vibrating state.

This application is a Continuation of U.S. application Ser. No.16/765,892 filed May 21, 2020, which is a National Stage completion ofPCT/EP2017/080780 filed Nov. 29, 2017.

FIELD OF THE INVENTION

The invention relates to an ultrasonic machining apparatus, a method forconfiguring an ultrasonic machining apparatus and a system according tothe preamble of the independent claims.

BACKGROUND OF THE INVENTION

It is known in the case of ultrasonic machining apparatuses thatindividual parameters of the components, for example of the generator,converter, booster, the sonotrode, the HV cable, the machine frame orthe holding apparatus for the workpiece, influence the processparameters, in particular the resonance frequency and the frequencybandwidth usable during operation and/or the amplitude of the apparatus.During the production of all of these components, production tolerancesmean that deviations inevitably occur. These deviations influence theprocess parameters, in particular the resonance frequency and thefrequency bandwidth usable during operation and/or the amplitude of theultrasonic machining apparatus. Thus, the ultrasonic machining apparatusneeds to be recalibrated when any one of these components is replaced.The adjustment or calibration makes allowance for the actual dimensionsof the components.

DE102015221615A1 discloses a system for automatically calibrating anultrasonic welding apparatus, for example. The system contains ameasuring unit for measuring an actual operating parameter and acomputer. Calibration involves the ultrasonic welding apparatus beingoperated using at least one specified operating parameter on the basisof a calibration data memory. During this, the measuring unit measuresthe actual operating parameter. The actual operating parameter is thencompared with the specified operating parameter, and if necessary acalibration of the ultrasonic welding apparatus is performed by adaptingthe specified data.

A disadvantage of the known ultrasonic welding apparatus is that thecalibration needs to resort to complex measurements during thecalibration process, and the process is thus slowed down.

EP0786323A1 discloses a method for interactively setting weldingparameters on ultrasonic welding apparatuses on the basis of the weldingwork to be undertaken. The method sets the parameters by using anindication pertaining to the welding quality of a weld produced using aninitial parameter. The aim is to allow automatic adjustment of thewelding apparatus on the basis of the application.

A disadvantage of the known method is that an initial weld needs to beproduced and the quality thereof needs to be assessed by a person.

US2003/0198667A1 discloses a welding device and a method for making adiagnosis for the same. The device comprises a sensor and a data memory.The data memory can contain information about the welding device, suchas for example a serial number, a model number, the production date ofthe welding device, and information about components used in the weldingdevice, such as for example a component part identifier or a componentversion identifier. On the basis of these data and data of the sensor(for example a current and voltage sensor), a diagnosis unit evaluatesthe state of the welding device. The diagnosis unit can subsequentlytake corrective measures.

A disadvantage of the known device is that allowance can be made forproduction tolerances of the components only indirectly by measuring thesystem configuration. The measurement slows down the systemconfiguration.

SUMMARY OF THE INVENTION

It is the object of the present invention to provide an ultrasonicmachining apparatus that avoids the disadvantages of the prior art, andin particular to provide a configuration method and a system in which itis ensured that the system is operated in a specified state.

The object is achieved by an ultrasonic machining apparatus and by amethod for adjusting or calibrating the ultrasonic machining apparatusand a system according to the independent claims.

According to the invention, in an ultrasonic machining apparatus formachining a workpiece, at least one, in particular all, of thecomponents selected from the list comprising generator, converter,booster, sonotrode, HV cable, machine frame and holding apparatus forthe workpiece has an associated identifier. The identifier characterizesat least one individual parameter of the applicable component.Preferably, the identifier characterizes a parameter influencing theprocess parameters, in particular the resonant frequency and thefrequency bandwidth usable during operation and/or the amplitude, inparticular an electrical, acoustic or dimensional parameter. Theapparatus has an associated input interface. By means of this inputinterface, the identifier or data produced on the basis of theidentifier can be read in. The apparatus has an associated computingarrangement. By means of the computing arrangement, the read-inidentifier or data produced from the identifier can to be taken as abasis for determining or setting at least one parameter of the apparatussuch that the apparatus is operated in a specified operating state. Thisspecified operating state is a resonant vibration state, in particular.

It is found to be advantageous that, by reading the identifier, theapparatus can thus be set to a specified operating state, without thisrequiring measurements during the setting. Measurement of individualparameters of the components during the adjustment or calibration isdispensed with. This allows the specified operating state to be setquickly, in particular. A measuring apparatus for measuring thecomponents in situ is no longer necessary. Allowance can easily be madefor individual parameters of the components during the adjustment orcalibration by reading in the applicable identifier.

The frequency bandwidth is characterized by a lower and an upper limitfrequency. The limit frequencies are chosen on the basis of dimensional,acoustic and electrical parameters of the ultrasonic machiningapparatus. The frequency bandwidth thus corresponds to a frequencyspectrum.

The amplitude is the amplitude of the mechanical vibration of theultrasonic machining apparatus.

In one embodiment, the identifier is embodied as an RFID chip, smartcode, bar code or USB stick.

RFID chips permit the storage of relatively large volumes of data incomparison with bar codes and permit the use of detailed identifiers andhence the coding of large volumes of data into the identifier. RFIDchips also afford the advantage, besides the high data density, thatthey can easily be read automatically. The use of RFID chips thus allowsthe direct digital processing of the identifier. The RFID chip can alsobe read from a distance, and without needing to be visible, by means ofan appropriate RFID reader. Thus, for example a central RFID reader canbe mounted in the generator of the ultrasonic machining apparatus, thisreader being able to be used to read the chips of all components of theultrasonic machining apparatus even after the applicable components areinstalled.

A smart code is a two-dimensional arrangement of white and blackelements. As a result of the two-dimensional arrangement of theseelements, the smart code permits a higher data density than is permittedby bar codes, for example. The higher data density allowserror-detecting elements, inter alia, to be integrated into the code, sothat the latter can be read more reliably. The smart code is thereforealso distinguished over the bar code by more reliable automaticreadability and is particularly well suited for use with the ultrasonicmachining apparatus.

The advantage of a bar code is found to be that it is easily readableautomatically. Bar codes are therefore suitable for automatic processingof the identifier.

The identifier in the form of a USB stick affords the advantage that theidentifier is digitally stored on the USB stick and thus can easily beprocessed further automatically. Additionally, the input interface ofthe apparatus can quite easily be in the form of a USB interface in thecase of a USB identifier. It is also found to be advantageous that theUSB stick is not arranged on the component itself and thus takes up nospace thereon. Furthermore, the dimensions of the component are notinfluenced by the identifier, and thus the identifier is prevented frominfluencing the process parameters, in particular the resonancefrequency and the frequency bandwidth usable during operation and/or theamplitude of the apparatus.

A parameter within the context of this application can also be aparameter set.

In one embodiment, the input interface is embodied as a USB interface,keyboard, touchscreen or as an RFID reader.

The computing arrangement can be arranged in the ultrasonic machiningapparatus or can be arranged physically separately therefrom. Thus, thecomputing arrangement can be a smartphone, a computer, a server, forexample, that is associated with the ultrasonic machining apparatusduring operation by means of an appropriate application.

In a preferred embodiment, the individual parameter of the component isa parameter measured by the manufacturer following manufacture.

It is found to be advantageous that it is also possible for allowance tobe made for production tolerances of the individual components duringthe system adjustment or system calibration without the need for a latermeasurement. This is of great significance for ultrasonic machiningapparatuses, since even the smallest production tolerances of thecomponents influence the specified operating state of the ultrasonicmachining apparatus.

The measurement of the component can thus be performed directly aftermanufacture. Performing the measurement directly after manufacturepermits this measurement to also be used for quality assurance for themanufacturing method.

In one embodiment, the individual parameter is an exact measured actualdimension, actual weight, actual impedance, actual frequency, amplitudetransformation or a material type or a date of manufacture (age) of thecomponent.

In a preferred embodiment, the individual parameter characterizes adeviation in the component in comparison with a specified state of thiscomponent.

This allows particularly simple handling of the individual parameters,since the parameter is thus a direct representation of the deviation tobe corrected. The computing arrangement can thus process the individualparameter in a particularly simple fashion.

In a preferred embodiment, the identifier biuniquely determines thecomponents.

This permits the exact component to be inferred from the identifier.Thus, not only is it possible for the welding apparatus to be calibratedon the basis of the individual parameter, it is also possible forevaluations about operation to be collected after the system is startedup, these data being able to be associated with a specific component.

In a preferred embodiment, the input interface is embodied as areading-in apparatus. The reading-in apparatus is connectable orconnected to the computing arrangement.

This allows the identifier to be read in by the reading-in apparatusdirectly and therefore spares the user of the apparatus from having toinput the identifier. The read-in identifier can be conveyed directly tothe computing arrangement via the connection thereto.

The reading-in apparatus is embodied as an infrared scanner, as acamera, color sensor or as an RFID reader, for example.

In a preferred embodiment, the reading-in apparatus is embodied as partof an ultrasonic machining apparatus. It is found to be advantageousthat the ultrasonic machining apparatus contains a reading-in apparatus,and the identifier can thus be effortlessly read in by the apparatusitself.

In a preferred embodiment, the computing arrangement and the reading-inapparatus are embodied in a common physical unit.

Preferably, the computing arrangement and/or the reading apparatus isembodied in the generator.

This means that the computing arrangement and/or the reading-inapparatus is arranged in direct proximity to the components to becalibrated. This allows short connecting paths between the computingarrangement and the reading-in apparatus and between the components tobe calibrated. This allows an economical design of the apparatus anddecreases the susceptibility of the transmission of the identifiers inthe apparatus (for example by the RFID technology) to interference.

In a preferred embodiment, the computing arrangement has a datainterface. The data interface is designed such that it allows remotemaintenance. In particular, the data interface is supposed to allowremote adjustment or remote calibration of the ultrasonic machiningapparatus. In particular, this is supposed to allow remote adjustment orremote calibration of the generator.

This allows computationally intensive processes to be performed on aremote computing arrangement. A remote computing arrangement is acomputing arrangement that is physically separate from the ultrasonicmachining apparatus, for example a computing arrangement in another roomof a building or in another building. The computing arrangement in theultrasonic machining apparatus can therefore be embodied smaller andhence in particular more economical. The data interface moreover allowsconstant monitoring of the ultrasonic machining apparatus remotely andalso corrective intervention.

The data interface is embodied as a USB interface, Ethernet interface,WLAN interface, Bluetooth interface or NFC (Near Field Communication)interface in one embodiment.

In a preferred embodiment, the identifier is attached to the component.

This allows the identifier to be read shortly before the components areused in the ultrasonic machining apparatus. Thus, when a component isreplaced, for example, the new component can already be unpacked andprovided and the identifier read shortly before the new component isfitted. This allows the ultrasonic welding apparatus to be operated witha shorter profound down time.

In a preferred embodiment, the identifier is associated with thepackaging of the component.

This allows, in particular in the case of small components, theidentifier to be associated with the component, without this resultingin the component itself being impaired by the identifier in some way.This association of the identifier also allows the ultrasonic machiningapparatus to be set up/altered and all of the identifiers to be read inonly then. Thus, it is possible for the phase of replacement of thecomponents and the phase of configuration/adjustment/calibration of thesystem to be separated in time. Thus, the resonant state of theultrasonic apparatus is not influenced by the identifier/theidentifiers.

The object is also achieved by a method for configuring an ultrasonicmachining apparatus. The configuration is performed in particular afterreplacement of at least one of the components selected from the groupcomprising gener ator, converter, booster, sonotrode, HV cable, machineframe and holding apparatus for the tool. The method comprises thefollowing steps: reading in an identifier. The identifier characterizesan individual parameter of the component. The identifier characterizesin particular a parameter influencing the process parameters, inparticular the resonance frequency and the frequency bandwidth usableduring operation and/or the amplitude of the apparatus. In particular,an electrical, acoustic or dimensional parameter is characterized bymeans of the identifier. The identifier is read in by means of areading-in apparatus. In a further step, the read-in identifier or dataproduced from the identifier is/are taken as a basis for determining aparameter of the apparatus. The parameter allows the apparatus to beoperated in a specified operating state. The specified operating stateis a resonant vibration state, in particular. In a next step, theapparatus is adjusted in accordance with the at least one parameter. Inparticular, the frequency bandwidth and/or the amplitude of thegenerator is/are adapted.

This allows the ultrasonic machining apparatus to be configured solelyon the basis of a read-in identifier or multiple read-in identifiers,without this requiring measurements in situ. This allows efficientconfiguration of the ultrasonic machining apparatus. The otherwisenecessary step of measuring an operating state of the ultrasonicmachining apparatus and subsequent comparison of the measured operatingstate with the specified operating state are dispensed with. Only thereading-in of the identifier is necessary, said identifier being takenas a basis for carrying out the adjustment or calibration.

In a preferred embodiment, the configuration method also comprises thesteps of: conveying the identifier or data produced on the basis of theidentifier to a physically separate computing arrangement. Subsequently,the parameter associated with the identifier is conveyed from thecomputing arrangement to the apparatus.

This permits the physically separate arrangement of the computingarrangement from the ultrasonic machining apparatus. It is thus possiblefor a central computing arrangement to be made available that storesand/or calculates the parameters and conveys them to the ultrasonicmachining apparatus after the applicable identifier is received. Theultrasonic machining apparatus can thus be embodied without a powerfulcomputing arrangement.

The central management of the parameters allows the evaluation of thedifferent parameters and hence, among other things, conclusions aboutthe production quality. Moreover, the time of the retrieval of theparameter can be recorded centrally and likewise analyzed. This permitsstatements concerning the performance of the apparatus and hence aconclusion about possible optimizations of the apparatus.

The object is also achieved by a method for manufacturing a componentfor an ultrasonic machining apparatus. The method comprisesmanufacturing a component. In a next step, the component produced ismeasured and the measurement is taken as a basis for producing aparameter set characterizing the component. In a next step, a biuniqueidentifier is produced that is associated with the parameter set. In afurther step, the identifier is associated with the component.

It is found to be advantageous that the component is thus measureddirectly after manufacture. Measuring the component during adjustment orcalibration, that is to say at the place of use of the ultrasonicmachining apparatus, is dispensed with. The measuring can thus beperformed under ideal conditions at a place specifically equippedtherefor by a professional using (complex) measuring apparatusesspecifically designed therefor. In comparison with a measurementperformed at the place of use of the ultrasonic machining apparatus by auser, such a measurement is more accurate and therefore permits theultrasonic machining apparatus to be adjusted more accurately. Thisallows the apparatus to be operated with the same results. Themeasurement results can be handled in a simple manner as a result ofbeing processed into a parameter set and as a result of this parameterset being associated with an identifier, which is in turn associatedwith the component. The additional supply of a detailed measurementreport for the component when the latter is delivered is thus dispensedwith. Intricately taking into consideration the measurement report whenreplacing the component is likewise dispensed with. A componentmanufactured using this method therefore allows simpler use of thecomponent in an ultrasonic machining apparatus. The method can be usedfor manufacturing the generator, converter, booster, the sonotrode, theHV cable, machine frame and the holding apparatus for the workpiece.

The object is also achieved by a system. The system comprises at leastone ultrasonic machining apparatus as described above and below. Thesystem comprises a database as well. The system also comprises acommunication interface between the ultrasonic machining apparatus andthe database. This communication interface is used for conveyinginformation between the ultrasonic machining apparatus and the database.

It is found to be advantageous that the database allows central storage,management, evaluation and control of data about the ultrasonicmachining apparatus. In particular, this allows the ultrasonic machiningapparatus itself to be made simpler, that is to say without a datamemory.

In a preferred embodiment, the database allows an identifier associatedwith at least one component of the ultra sonic machining apparatus and aparameter set that characterizes the component to be linked.

This allows the association of a complex parameter set with a componenton the basis of a simple identifier, which can be associated with thecomponent.

In a further embodiment, the system also comprises a remote computingarrangement besides the remote database.

This permits the ultrasonic welding apparatus to be simplified furtherand the adjustment or calibration on the basis of the reading-in ofidentifiers described above and below to nevertheless be made possible.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention is explained in more detail below on the basis ofexemplary embodiments in figures, in which:

FIG. 1 shows a depiction of a first exemplary embodiment of theultrasonic machining apparatus.

FIG. 2 shows depictions of a first exemplary embodiment of theidentifier.

FIG. 3 shows a depiction of a second exemplary embodiment of theidentifier.

FIG. 4 shows a depiction of a third exemplary embodiment of theidentifier.

FIG. 5 shows a schematic depiction of the exemplary embodiment of theultrasonic machining apparatus shown in FIG. 1.

FIG. 6 shows a schematic depiction of a second exemplary embodiment ofan ultrasonic machining apparatus according to the invention.

FIG. 7 shows a schematic depiction of a third exemplary embodiment of anultrasonic machining apparatus according to the invention.

FIG. 8 shows a schematic depiction of a fourth exemplary embodiment ofan ultrasonic machining apparatus according to the invention.

FIG. 9 shows a schematic depiction of a fifth exem plary embodiment ofan ultrasonic machining apparatus according to the invention.

FIG. 10 shows a schematic depiction of a sixth exemplary embodiment ofan ultrasonic machining apparatus according to the invention.

FIG. 11 shows a schematic depiction of a seventh exemplary embodiment ofan ultrasonic machining apparatus according to the invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

1 shows a simplified view of a first exemplary embodiment of anultrasonic machining apparatus 1 in the form of an ultrasonic weldingapparatus. The ultrasonic welding apparatus 1 consists of multiplecomponents. It comprises a generator 11, a converter 12, an HV cable 15,a booster 13, a sonotrode 14, a machine frame 16 and a holding apparatus17 for the workpiece. The generator 11 is connected to the converter 12via the HV cable 15. The generator 11 generates an electrical AC signalthat is transmitted to the converter 12 via the HV cable 15 and thuspowers the converter 12. The converter 12 converts the electrical ACsignal into a mechanical vibration. This mechanical vibration istransmitted from the converter 12 to the booster 13. The booster 13 isdesigned such that it alters the amplitude of the vibration. The booster13 transmits the mechanical vibration to the sonotrode 14, the sonotrode14 subsequently transmitting this vibration to the workpiece. In thisway, the workpiece is ultrasonically welded. The converter 12, booster13 and the sonotrode 14 are held on the apparatus 1 by the machine frame16.

In order to operate the ultrasonic welding apparatus 1 in the specifiedoperating state, that is to say at resonance frequency, the componentsneed to be precisely matched to one another. Since the componentsdeviate from the specified dimensions owing to production tolerances,for example, replacement of a component needs to be followed by anadjustment of the ultrasonic welding apparatus 1. The adjustment takesinto consideration the individual parameters (actual parameters) of thecomponents and adjusts the ultrasonic welding apparatus 1 to theseindividual parameters. Thus, for example the frequency bandwidth and/orthe amplitude of the electrical AC signal of the generator 11 can beadapted. The frequency of the AC signal is adapted by the adjustment ofthe generator such that the ultrasonic welding apparatus 1 is operatedat resonance at a specific amplitude. In the exemplary embodimentaccording to the invention, the sonotrode 14 has an identifier 18. Theidentifier 18 is linked to an individual parameter of the sonotrode 14.The adjustment of the ultrasonic welding apparatus 1 can thus besimplified by virtue of the identifier 18 being read in. For the purposeof adjustment, the identifier 18 is input by an input interface (seeFIG. 5), as a result of which a statement about the individual form ofthe sonotrode 14 can be made on the basis of the identifier 18. Thisinformation is used to perform the adjustment. Thus, for example theidentifier 18 associated with the sonotrode 14 can be taken as a basisfor determining the actual dimensions of the sonotrode 14. Thesedimensions have been measured and linked to the identifier 18 aftermanufacture of the sonotrode 14. Thus, the dimensions can be ascertainedon the basis of the identifier 18 and used for calculating the frequencybandwidth and/or amplitude. During the adjustment, the generatorfrequency is subsequently adapted for this calculated frequencybandwidth and/or amplitude.

FIG. 2 schematically shows a first exemplary embodiment of an identifier18 according to the invention. It is an RFID chip. RFID chips are wellknown from the prior art.

FIG. 3 schematically shows a second exemplary embodiment of anidentifier according to the invention. It is a smart code.

FIG. 4 schematically shows a third exemplary embodiment of an identifier18 according to the invention. It is a bar code.

In a further exemplary embodiment (not shown), the identifier 18 isembodied as a USB stick, which is enclosed in the packaging, forexample.

FIG. 5 shows a schematic depiction of the exemplary embodiment of theultrasonic welding apparatus 1 from FIG. 1. The apparatus 1 comprisesthe components generator 11, converter 12, booster 13, sonotrode 14, HVcable 15, machine frame 16 and holding apparatus 17 for the workpiece.In this exemplary embodiment, the sonotrode 14 is the only component tohave an associated identifier 18. The apparatus 1 also comprises aninput interface 19 and a computing arrangement 20. The input interface19 allows input of the identifier 18, the computing arrangement 20 beingused for processing the identifier 18 and for adjusting the apparatus 1.The input interface 19 is embodied as a USB interface in this exemplaryembodiment. The identifier 18, which is embodied as a USB stick in thisexemplary embodiment, can thus be introduced into the input interface 19by a person operating the apparatus 1. The read-in identifier 18 issubsequently processed by the computing arrangement 20. The computingarrangement 20 takes the identifier 18 as a basis for ascertaining anindividual parameter of the sonotrode 14. This parameter corresponds tothe exact actual dimensions of the sonotrode 14 in this exemplaryembodiment. The computing arrangement 20 uses these actual dimensions tocalculate a frequency bandwidth and/or amplitude for the ultrasonicwelding apparatus 1 and adapts the frequency bandwidth and/or amplitudeof the generator 11 accordingly.

FIG. 6 shows a further exemplary embodiment of the ultrasonic weldingapparatus 1. In this exemplary embodiment, all of the components, thatis to say the generator 11, the converter 12, the booster 13, thesonotrode 14, the HV cable 15, the machine frame 16 and the holdingapparatus 17 for the workpiece, have one identifier 18 each with variousinformation. The input interface is embodied as a reading-in apparatus21 in this exemplary embodiment. The reading-in apparatus 21 is an RFIDreader. The identifiers 18 are attached directly to the components asRFID chips.

The identifiers 18 of the components can thus be read in by thereading-in apparatus 21. The reading-in apparatus 21 forwards theidentifiers 18 to the computing arrangement 20. The computingarrangement 20 takes the identifiers 18 as a basis for determining theindividual parameters of the components 11, 12, 13, 14, 15, 16, 17, sothat the computing arrangement 20 can subsequently calculate a frequencybandwidth and/or amplitude adapted for the individual components. Thecomputing arrangement 20 conveys the calculated frequency bandwidthand/or amplitude to the generator 11, which adapts its output signalaccordingly.

FIG. 7 shows a further exemplary embodiment of the ultrasonic weldingapparatus 1 according to the invention. In this exemplary embodiment,the computing arrangement 20 and the reading apparatus 21 are integratedin the generator 11 of the apparatus 1. Each component 11, 12, 13, 14,15, 16, 17 has an associated biunique identifier 18.

FIG. 8 shows a further exemplary embodiment of an ultrasonic weldingapparatus 1 according to the invention. In this exemplary embodiment,the computing arrangement 20 is arranged outside the apparatus 1, thatis to say remotely from the apparatus. The reading-in apparatus 21 isarranged in the ultrasonic welding apparatus 1 in this exemplaryembodiment.

FIG. 9 shows a further exemplary embodiment of the ultrasonic weldingapparatus 1, wherein the computing arrangement 20 and the reading-inapparatus 21 are arranged outside the ultrasonic welding apparatus 1 inthis example.

FIG. 10 shows an exemplary embodiment of a system 22 according to theinvention. The system 22 also comprises a database 23, connected to theapparatus 1 via a communication interface 24, besides the ultrasonicwelding apparatus 1. The apparatus 1 comprises a reading-in apparatus 21that is used to read in the identifiers 18 of the components. Theread-in identifiers 18 are processed by the computing arrangement 20,which is likewise accommodated in the apparatus 1. The computingarrangement 20 uses the communication interface 24 to request theparameters/parameter sets that correspond to the identifiers from adatabase 23. By way of example, the database 23 comprises a lookup tablein which a parameter set corresponding to the component is stored on thebasis of the biunique identifier. The computing arrangement 20 of theapparatus takes the parameters requested from the database 23 as a basisfor calculating a frequency bandwidth and/or amplitude suited to thecomponents of the apparatus 1, and subsequently adjusts the generatoraccordingly.

FIG. 11 shows a further exemplary embodiment of a system 22 according tothe invention. In this exemplary embodiment, the computing arrangement20 is arranged not in the ultrasonic welding apparatus 1, but ratherlikewise remotely. The computing arrangement 20 can thus be usedcentrally for multiple ultrasonic machining apparatuses 1 (only oneultrasonic machining apparatus shown).

Ultrasonic Machining Device, Method for Configuring an UltrasonicMachining Device, and System Having an Ultrasonic Machining Device ofThis Type

The invention relates to an ultrasonic machining apparatus, a method forconfiguring an ultrasonic machining apparatus and a system according tothe preamble of the independent claims.

It is known in the case of ultrasonic machining apparatuses thatindividual parameters of the components, for example of the generator,converter, booster, the sonotrode, the HV cable, the machine frame orthe holding apparatus for the workpiece, influence the processparameters, in particular the resonance frequency and the frequencybandwidth usable during operation and/or the amplitude of the apparatus.During the production of all of these components, production tolerancesmean that deviations inevitably occur. These deviations influence theprocess parameters, in particular the resonance frequency and thefrequency bandwidth usable during operation and/or the amplitude of theultrasonic machining apparatus. Thus, the ultrasonic machining apparatusneeds to be recalibrated when any one of these components is replaced.The adjustment or calibration makes allowance for the actual dimensionsof the components.

DE102015221615A1 discloses a system for automatically calibrating anultrasonic welding apparatus, for example. The system contains ameasuring unit for measuring an actual operating parameter and acomputer. Calibration involves the ultrasonic welding apparatus beingoperated using at least one specified 30 operating parameter on thebasis of a calibration data memory. During this, the measuring unitmeasures the actual operating parameter. The actual operating parameteris then compared with the specified operating parameter, and ifnecessary a calibration of the ultrasonic welding apparatus is performedby adapting the specified data.

A disadvantage of the known ultrasonic welding apparatus is that thecalibration needs to resort to complex measurements during thecalibration process, and the process is thus slowed down.

EP0786323A1 discloses a method for interactively setting weldingparameters on ultrasonic welding apparatuses on the basis of the weldingwork to be undertaken. The method sets the parameters by using anindication pertaining to the welding quality of a weld produced using aninitial parameter. The aim is to allow automatic adjustment of thewelding apparatus on the basis of the application.

A disadvantage of the known method is that an initial weld needs to beproduced and the quality thereof needs to be assessed by a person.

US2003/0198667A1 discloses a welding device and a method for making adiagnosis for the same. The device comprises a sensor and a data memory.The data memory can contain information about the welding device, suchas for example a serial number, a model number, the production date ofthe welding device, and information about components used in the weldingdevice, such as for example a component part identifier or a componentversion identifier. On the basis of these data and data of the sensor(for example a current and voltage sensor), a diagnosis unit evaluatesthe state of the welding device. The diagnosis unit can subsequentlytake corrective measures.

A disadvantage of the known device is that allowance can be made forproduction tolerances of the components only indirectly by measuring thesystem configuration. The measurement slows down the systemconfiguration.

It is the object of the present invention to provide an ultrasonicmachining apparatus that avoids the disadvantages of the prior art, andin particular to provide a configuration method and a system in which itis ensured that the system is operated in a specified state.

The object is achieved by an ultrasonic machining apparatus and by amethod for adjusting or calibrating the ultrasonic machining apparatusand a system according to the independent claims.

According to the invention, in an ultrasonic machining apparatus formachining a workpiece, at least one, in particular all, of thecomponents selected from the list comprising generator, converter,booster, sonotrode, HV cable, machine frame and holding apparatus forthe workpiece has an associated identifier. The indicator characterizesat least one individual parameter of the applicable component.Preferably, the identifier characterizes a parameter that parameterinfluencing the process parameters, in particular the resonant frequencyand the frequency bandwidth usable during operation and/or theamplitude, in particular an electrical, acoustic or dimensionalparameter. The apparatus has an associated input interface. By means ofthis input interface, the identifier or data produced on the basis ofthe identifier can be read in. The apparatus has an associated computingarrangement. By means of the computing arrangement, the read-inidentifier or data produced from the identifier can to be taken as abasis for determining or setting at least one parameter of the apparatussuch that the apparatus is operated in a specified operating state. Thisspecified operating state is a resonant vibration state, in particular.

It is found to be advantageous that, by reading the identifier, heapparatus can thus be set to a specified operating state, without thisrequiring measurements during the setting. Measurement of individualparameters of the components during the adjustment or calibration isdispensed with. This allows the specified operating state to be setquickly, in particular. A measuring apparatus for measuring thecomponents in situ is no longer necessary. Allowance can easily be madefor individual parameters of the components during the adjustment orcalibration by reading in the applicable identifier.

The frequency bandwidth is characterized by a lower and an upper limitfrequency. The limit frequencies are chosen on the basis of dimensional,acoustic and electrical parameters of the ultrasonic machiningapparatus. The frequency bandwidth thus corresponds to a frequencyspectrum.

The amplitude is the amplitude of the mechanical vibration of theultrasonic machining apparatus.

In one embodiment, the identifier is embodied as an RFID chip, smartcode, bar code or USB stick.

RFID chips permit the storage of relatively large volumes of data incomparison with bar codes and permit the use of detailed identifiers andhence the coding of large volumes of data into the identifier. RFIDchips also afford the advantage, besides the high data density, thatthey can easily be read automatically. The use of RFID chips thus allowsthe direct digital processing of the identifier. The RFID chip can alsobe read from a distance, and without needing to be visible, by means ofan appropriate RFID reader. Thus, for example a central RFID reader canbe mounted in the generator of the ultrasonic machining apparatus, thisreader being able to be used to read the chips of ll components of theultrasonic machining apparatus even after the applicable components areinstalled.

A smart code is a two-dimensional arrangement of white and blackelements. As a result of the two-dimensional arrangement of theseelements, the smart code permits a higher data density than is permittedby bar codes, for example. The higher data density allowserror-detecting elements, inter alia, to be integrated into the code, sothat the latter can be read more reliably. The smart code is thereforealso distinguished over the bar code by more reliable automaticreadability and is particularly well suited for use with the ultrasonicmachining apparatus.

The advantage of a bar code is found to be that it is easily readableautomatically. Bar codes are therefore suitable for automatic processingof the identifier.

The identifier in the form of a USB stick affords the advantage that theidentifier is digitally stored on the USB stick and thus can easily beprocessed further automatically. Additionally, the input interface ofthe apparatus can quite easily be in the form of a USB interface in thecase of a USB identifier. It is also found to be advantageous that theUSB stick is not arranged on the component itself and thus takes up nospace thereon. Furthermore, the mass of the component is not influencedby the identifier, and thus the identifier is prevented from influencingthe process parameters, in particular the resonance frequency and thefrequency bandwidth usable during operation and/or the amplitude of theapparatus.

A parameter within the context of this application can also be aparameter set.

In one embodiment, the input interface is embodied as a USB interface,keyboard, touchscreen or as an RFID reader.

The computing arrangement can be arranged in the ultrasonic machiningapparatus or can be arranged physically separately therefrom. Thus, thecomputing arrangement can be a smartphone, a computer, a server, forexample, that is associated with the ultrasonic machining apparatusduring operation by means of an appropriate application.

In a preferred embodiment, the individual parameter of the component isa parameter measured by the manufacturer following manufacture.

It is found to be advantageous that it is also possible for allowance tobe made for production tolerances of the individual components duringthe system adjustment or system calibration without the need for a latermeasurement. This is of great significance for ultrasonic machiningapparatuses, since even the smallest production tolerances of thecomponents influence the specified operating state of the ultrasonicmachining apparatus.

The measurement of the component can thus be performed directly aftermanufacture. Performing the measurement directly after manufacturepermits this measurement to also be used for quality assurance for themanufacturing method.

In one embodiment, the individual parameter is an exact measured actualdimension, actual weight, actual impedance, actual frequency, amplitudetransformation or a material type or a date of manufacture (age) of thecomponent.

In a preferred embodiment, the individual parameter characterizes adeviation in the component in comparison with a specified state of thiscomponent.

This allows particularly simple handling of the individual parameters,since the parameter is thus a direct representation of the deviation tobe corrected. The computing arrangement can thus process the individualparameter in a particularly simple fashion.

In a preferred embodiment, the identifier biuniquely determines thecomponents.

This permits the exact component to be inferred from the identifier.Thus, not only is it possible for the welding apparatus to be calibratedon the basis of the individual parameter, it is also possible forevaluations about operation to be collected after the system is startedup, these data being able to be associated with a specific component.

In a preferred embodiment, the input interface is embodied as areading-in apparatus. The reading-in apparatus is connectable orconnected to the computing arrangement.

This allows the identifier to be read in by the reading-in apparatusdirectly and therefore spares the user of the apparatus from having toinput the identifier. The read-in identifier can be conveyed directly tothe computing arrangement via the connection thereto.

The reading-in apparatus is embodied as an infrared scanner, as acamera, color sensor or as an RFID reader, for example.

In a preferred embodiment, the reading-in apparatus is embodied as partof an ultrasonic machining apparatus. It is found to be advantageousthat the ultrasonic machining apparatus contains a reading-in apparatus,and the identifier can thus be effortlessly read in by the apparatusitself.

In a preferred embodiment, the computing arrangement and the reading-inapparatus are embodied in a common physical unit.

Preferably, the computing arrangement and/or the reading apparatus isembodied in the generator.

This means that the computing arrangement and/or the reading-inapparatus is arranged in direct proximity to the components to becalibrated. This allows short connecting paths between the computingarrangement and the reading-in apparatus and between the components tobe calibrated. This allows an economical design of the apparatus anddecreases the susceptibility of the transmission of the identifiers inthe apparatus (for example by the RFID technology) to interference.

In a preferred embodiment, the computing arrangement has a datainterface. The data interface is designed such that it allows remotemaintenance. In particular, the data interface is supposed to allowremote adjustment or remote calibration of the ultrasonic machiningapparatus. In particular, this is supposed to allow remote adjustment orremote calibration of the generator.

This allows computationally intensive processes to be performed on aremote computing arrangement. A remote computing arrangement is acomputing arrangement that is physically separate from the ultrasonicmachining apparatus, for example a computing arrangement in another roomof a building or in another building. The computing arrangement in theultrasonic machining apparatus can therefore be embodied smaller andhence in particular more economical. The data interface moreover allowsconstant monitoring of the ultrasonic machining apparatus remotely andalso corrective intervention.

The data interface is embodied as a USB interface, Ethernet interface,WLAN interface, Bluetooth interface or NFC (Near Field Communication)interface in one embodiment.

In a preferred embodiment, the identifier is attached to the component.

This allows the identifier to be read shortly before the components areused in the ultrasonic machining apparatus. Thus, when a component isreplaced, for example, the new component can already be unpacked andprovided and the identifier read shortly before the new component isfitted. This allows the ultrasonic welding apparatus to be operated witha shorter profound down time.

In a preferred embodiment, the identifier is associated with thepackaging component.

This allows, in particular in the case of small components, theidentifier to be associated with the component, without this resultingin the component itself being impaired by the identifier in some way.This association of the identifier also allows the ultrasonic machiningapparatus to be set up/altered and all of the identifiers to be read inonly then. Thus, it is possible for the phase of replacement of thecomponents and the phase of configuration/adjustment/calibration of thesystem to be separated in time. Thus, the resonant state of theultrasonic apparatus is not influenced by the identifier/theidentifiers.

The object is also achieved by a method for configuring an ultrasonicmachining apparatus. The configuration is performed in particular afterreplacement of at least one of the components selected from the groupcomprising generator, converter, booster, sonotrode, HV cable, machineframe and holding apparatus for the tool. The method comprises thefollowing steps: reading in an identifier. The identifier characterizesan individual parameter of the component. The identifier characterizesin particular a parameter influencing the process parameters, inparticular the resonance frequency and the frequency bandwidth usableduring operation and/or the amplitude of the apparatus. In particular,an electrical, acoustic or dimensional parameter is characterized bymeans of the identifier. The identifier is read in by means of areading-in apparatus. In a further step, the read-in identifier or dataproduced from the identifier is/are taken as a basis for determining aparameter of the apparatus. The parameter allows the apparatus to beoperated in a specified operating state. The specified operating stateis a resonant vibration state, in particular. In a next step, theapparatus is adjusted in accordance with the at least one parameter. Inparticular, the frequency bandwidth and/or the amplitude of thegenerator is/are adapted.

This allows the ultrasonic machining apparatus to be configured solelyon the basis of a read-in identifier or multiple read-in identifiers,without this requiring measurements in situ. This allows efficientconfiguration of the ultrasonic machining apparatus. The otherwisenecessary step of measuring an operating state of the ultrasonicmachining apparatus and subsequent comparison of the measured operatingstate with the specified operating state are dispensed with. Only thereading-in of the identifier is necessary, said identifier being takenas a basis for carrying out the adjustment or calibration.

In a preferred embodiment, the configuration method also comprises thesteps of: conveying the identifier or data produced on the basis of theidentifier to a physically separate computing arrangement. Subsequently,the parameter associated with the identifier is conveyed from thecomputing arrangement to the apparatus.

This permits the physically separate arrangement of the computingarrangement from the ultrasonic machining apparatus. It is thus possiblefor a central computing arrangement to be made available that storesand/or calculates the parameters and con veys them to the ultrasonicmachining apparatus after the applicable identifier is received. Theultrasonic machining apparatus can thus be embodied without a powerfulcomputing arrangement.

The central management of the parameters further the evaluation of thedifferent parameters and hence, among other things, conclusions aboutthe production quality. Moreover, the time of the retrieval of theparameter can be recorded centrally and likewise analyzed. This permitsstatements concerning the performance of the apparatus and hence aconclusion about possible optimizations of the apparatus.

The object is also achieved by a method for manufacturing a componentfor an ultrasonic machining apparatus. The method comprisesmanufacturing a component. In a next step, the component produced ismeasured and the measurement is taken as a basis for producing aparameter set characterizing the component. In a next step, a biuniqueidentifier is produced that is associated with the parameter set. In afurther step, the identifier is associated with the component.

It is found to be advantageous that the component is thus measureddirectly after manufacture. Measuring the component during adjustment orcalibration, that is to say at the place of use of the ultrasonicmachining apparatus, is dispensed with. The measuring can thus beperformed under ideal conditions at a place specifically equippedtherefor by a professional using (complex) measuring apparatusesspecifically designed therefor. In comparison with a measurementperformed at the place of use of the ultrasonic machining apparatus by auser, such a measurement is more accurate and therefore permits theultrasonic machining apparatus to be adjusted more accurately. Thisallows the apparatus to be operated with the same results. Themeasurement results can be handled in a simple manner as a result ofbeing processed into a parameter set and as a result of this parameterset being associated with an identifier, which is in turn associatedwith the component. The additional supply of a detailed measurementreport for the component when the latter is delivered is thus dispensedwith. Intricately taking into consideration the measurement report whenreplacing the component is likewise dispensed with. A componentmanufactured using this method therefore allows simpler use of thecomponent in an ultrasonic machining apparatus. The method can be usedfor manufacturing the generator, converter, booster, the sonotrode, theHV cable, machine frame and the holding apparatus for the workpiece.

The object is also achieved by a system. The system comprises at leastone ultrasonic machining apparatus as described above and below. Thesystem comprises a database as well. The system also comprises acommunication interface between the ultrasonic machining apparatus andthe database. This communication interface is used for conveyinginformation between the ultrasonic machining apparatus and the database.

It is found to be advantageous that the database allows central storage,management, evaluation and control of data about the ultrasonicmachining apparatus. In particular, this allows the ultrasonic machiningapparatus itself to be made simpler, that is to say without a datamemory.

In a preferred embodiment, the database allows an identifier associatedwith at least one component of the ultrasonic machining apparatus and aparameter set that characterizes the component to be linked.

This allows the association of a complex parameter set with a componenton the basis of a simple identifier, which can be associated with thecomponent.

In a further embodiment, the system also comprises a remote computingarrangement besides the remote database.

This permits the ultrasonic welding apparatus to be simplified furtherand the adjustment or calibration on the basis of the reading-in ofidentifiers described above below to nevertheless be made possible.

The invention is explained in more detail below on the basis ofexemplary embodiments in figures, in which:

FIG. 1 shows a depiction of a first exemplary embodiment of theultrasonic machining apparatus.

FIG. 2 shows depictions of a first exemplary embodiment of theidentifier.

FIG. 3 shows a depiction of a second exemplary embodiment of theidentifier.

FIG. 4 shows a depiction of a third exemplary embodiment of theidentifier.

FIG. 5 shows a schematic depiction of the exemplary embodiment of theultrasonic machining apparatus shown in FIG. 1.

FIG. 6 shows a schematic depiction of a second exemplary embodiment ofan ultrasonic machining apparatus according to the invention.

FIG. 7 shows a schematic depiction of a third exemplary embodiment of anultrasonic machining apparatus according to the invention.

FIG. 8 shows a schematic depiction of a fourth exemplary embodiment ofan ultrasonic machining apparatus according to the invention.

FIG. 9 shows a schematic depiction of a fifth exemplary embodiment of anultrasonic machining apparatus according to the invention.

FIG. 10 shows a schematic depiction of a sixth exemplary embodiment ofan ultrasonic machining apparatus according to the invention.

FIG. 11 shows a schematic depiction of a seventh exemplary embodiment ofan ultrasonic machining apparatus according to the invention.

FIG. 1 shows a simplified view of a first exemplary embodiment of anultrasonic machining apparatus 1 in the form of an ultrasonic weldingapparatus. The ultrasonic welding apparatus 1 consists of multiplecomponents. It comprises a generator 11, a converter 12, an HV cable 15,a booster 13, a sonotrode 14, a machine frame 16 and a holding apparatus17 for the workpiece. The generator 11 is connected to the converter 12via the HV cable 15. The generator 11 generates an electrical AC signalthat is transmitted to the converter 12 via the HV cable 15 and thuspowers the converter 12. The converter 12 converts the electrical ACsignal into a mechanical vibration. This mechanical vibration istransmitted from the converter 12 to the booster 13. The booster 13 isdesigned such that it alters the amplitude of the vibration. The booster13 transmits the mechanical vibration to the sonotrode 14, the sonotrode14 subsequently transmitting this vibration to the workpiece. In thisway, the workpiece is ultrasonically welded. The converter 12, booster13 and the sonotrode 14 are held on the apparatus 1 by the machine frame16.

In order to operate the ultrasonic welding apparatus 1 in the pecifiedoperating state, that is to say at resonance frequency, the componentsneed to be precisely matched to one another. Since the componentsdeviate from the specified dimensions owing to production tolerances,for example, replacement of a component needs to be followed by anadjustment of the ultrasonic welding apparatus 1. The adjustment takesinto consideration the individual parameters (actual parameters) of thecomponents and adjusts the ultrasonic welding apparatus 1 to theseindividual parameters. Thus, for example the frequency bandwidth and/orthe amplitude of the electrical AC signal of the generator 11 can beadapted. The frequency of the AC signal is adapted by the adjustment ofthe generator such that the ultrasonic welding apparatus 1 is operatedat resonance at a specific amplitude. In the exemplary embodimentaccording to the invention, the sonotrode 14 has an identifier 18. Theidentifier 18 is linked to an individual parameter of the sonotrode 14.The adjustment of the ultrasonic welding apparatus 1 can thus besimplified by virtue of the identifier 18 being read in. For the purposeof adjustment, the identifier 18 is input by an input interface (seeFIG. 5), as a result of which a statement about the individual form ofthe sonotrode 14 can be made on the basis of the identifier 18. Thisinformation is used to perform the adjustment. Thus, for example theidentifier 18 associated with the sonotrode 14 can be taken as a basisfor determining the actual dimensions of the sonotrode 14. Thesedimensions have been measured and linked to the identifier 18 aftermanufacture of the sonotrode 14. Thus, the dimensions can be ascertainedon the basis of the identifier 18 and used for calculating the frequencybandwidth and/or amplitude. During the adjustment, the generatorfrequency is subsequently adapted for this calculated frequencybandwidth and/or amplitude.

FIG. 2 schematically shows a first exemplary embodiment of an identifier18 according to the invention. It is an RFID chip. RFID chips are wellknown from the prior art.

FIG. 3 schematically shows a second exemplary embodiment of anidentifier according to the invention. It is a smart code.

FIG. 4 schematically shows a third exemplary embodiment of an identifier18 according to the invention. It is a bar code.

In a further exemplary embodiment (not shown), the identifier 18 isembodied as a USB stick, which is enclosed in the packaging, forexample.

FIG. 5 shows a schematic depiction of the exemplary embodiment of theultrasonic welding apparatus 1 from FIG. 1. The apparatus 1 comprisesthe components generator 11, converter 12, booster 13, sonotrode 14, HVcable 15, machine frame 16 and holding apparatus 17 for the workpiece.In this exemplary embodiment, the sonotrode 14 is the only component tohave an associated identifier 18. The apparatus 1 also comprises aninput interface 19 and a computing arrangement 20. The input interface19 allows input of the identifier 18, the computing arrangement 20 beingused for processing the identifier 18 and for adjusting the apparatus 1.The input interface 19 is embodied as a USB interface in this exemplaryembodiment. The identifier 18, which is embodied as a USB stick in thisexemplary embodiment, can thus be introduced into the input interface 19by a person operating the apparatus 1. The read-in identifier 18 issubsequently processed by the computing arrangement 20. The computingarrangement 20 takes the identifier 18 as a basis for ascertaining anindividual parameter of the sonotrode 14. This parameter corresponds tothe exact actual dimensions of the sonotrode 14 in this exemplaryembodiment. The computing arrangement 20 uses these actual dimensions tocalculate a frequency bandwidth and/or amplitude for the ultrasonicwelding apparatus 1 and adapts the frequency bandwidth and/or amplitudeof the generator 11 accordingly.

FIG. 6 shows a further exemplary embodiment of the ultrasonic weldingapparatus 1. In this exemplary embodiment, all of the components, thatis to say the generator 11, the converter 12, the booster 13, thesonotrode 14, the HV cable 15, the machine 15 frame 16 and the holdingapparatus 17 for the workpiece, have one identifier 18 each with variousinformation. The input interface is embodied as a reading-in apparatus21 in this exemplary embodiment. The reading-in apparatus 21 is an RFIDreader. The identifiers 18 are attached directly to the components asRFID chips. The identifiers 18 of the components can thus be read in bythe reading-in apparatus 21. The reading-in apparatus 21 forwards theidentifiers 18 to the computing arrangement 20. The computingarrangement 20 takes the identifiers 18 as a basis for determining theindividual parameters of the components 11, 12, 13, 14, 15, 16, 17, sothat the computing arrangement 20 can subsequently calculate a frequencybandwidth and/or amplitude adapted for the individual components. Thecomputing arrangement 20 conveys the calculated frequency bandwidthand/or amplitude to the generator 11, which adapts its output signalaccordingly.

FIG. 7 shows a further exemplary embodiment of the ultrasonic weldingapparatus 1 according to the invention. In this exemplary embodiment,the computing arrangement 20 and the reading apparatus 21 are integratedin the generator 11 of the apparatus 1. Each component 11, 12, 13, 14,15, 16, 17 has an associated biunique identifier 18.

FIG. 8 shows a further exemplary embodiment of an ultrasonic weldingapparatus 1 according to the invention. In this exemplary embodiment,the computing arrangement 20 is arranged outside the apparatus 1, thatis to say remotely from the apparatus. The reading-in apparatus 21 isarranged in the ultrasonic welding apparatus 1 in this exemplaryembodiment.

FIG. 9 shows a further exemplary embodiment of the ultrasonic weldingapparatus 1, wherein the computing arrangement 20 and the reading-inapparatus 21 are arranged outside the ultrasonic welding apparatus 1 inthis example.

FIG. 10 shows an exemplary embodiment of a system 22 according to theinvention. The system 22 also comprises a database 23, connected to theapparatus 1 via a communication interface 24, besides the ultrasonicwelding apparatus 1. The apparatus 1 comprises a reading-in apparatus 21that is used to read in the identifiers 18 of the components. Theread-in identifiers 18 are processed by the computing arrangement 20,which is likewise accommodated in the apparatus 1. The computingarrangement 20 uses the communication interface 24 to request theparameters/parameter sets that correspond to the identifiers from adatabase 23. By way of example, the database 23 comprises a lookup tablein which a parameter set corresponding to the component is stored on thebasis of the biunique identifier. The computing arrangement 20 of theapparatus takes the parameters requested from the database 23 as a basisfor calculating a frequency bandwidth and/or amplitude suited to thecomponents of the apparatus 1, and subsequently adjusts the generatoraccordingly.

FIG. 11 shows a further exemplary embodiment of a system 22 according tothe invention. In this exemplary embodiment, the computing arrangement20 is arranged not in the ultrasonic welding apparatus 1, but ratherlikewise remotely. The computing arrangement 20 can thus be usedcentrally for multiple ultrasonic machining apparatuses 1 (only oneultrasonic machining apparatus shown).

1-15. (canceled)
 16. An ultrasonic machining apparatus for machining a workpiece, wherein at least one component of the ultrasonic machining apparatus is selected from the group consisting of a generator, a converter, a booster, a sonotrode, an HV cable, a machine frame, and a holding apparatus for the workpiece, wherein the component has an associated identifier which is associated with an individual parameter that characterizes the component, the apparatus has an associated input interface by which the identifier or data produced on a basis of the identifier can be read in, and the apparatus has an associated computing arrangement by which the read-in identifier or data produced from the identifier can be taken as a basis for determining at least one parameter of the apparatus such that the apparatus is operated in a specified operating state.
 17. The ultrasonic machining apparatus according to claim 16, wherein the individual parameter of the component is a parameter measured after said component is manufactured.
 18. The ultrasonic machining apparatus according to claim 16, wherein the individual parameter the component characterizes a deviation in the component in comparison with a specified state of this component.
 19. The ultrasonic machining apparatus according to claim 16, wherein the identifier biuniquely determines the component.
 20. The ultrasonic machining apparatus according to claim 16, wherein the input interface is embodied as a reading-in apparatus, and the reading-in apparatus is connectable to the computing arrangement.
 21. The ultrasonic machining apparatus according to claim 16, wherein the reading-in apparatus is embodied as a component of the ultrasonic machining apparatus.
 22. The ultrasonic machining apparatus according to claim 16, wherein the computing arrangement and/or the reading-in apparatus are embodied in one component.
 23. The ultrasonic machining apparatus according to claim 22, wherein the computing arrangement and/or the reading-in apparatus are embodied in the generator.
 24. The ultrasonic machining apparatus according to claim 16, wherein the computing arrangement has a communication interface designed such that the communication interface allows remote maintenance of the ultrasonic machining apparatus.
 25. The ultrasonic machining apparatus according to claim 24, wherein the communication interface is designed such that the communication interface allows remote maintenance the generator.
 26. The ultrasonic machining apparatus according to claim 16, wherein the identifier is attached to the component.
 27. The ultrasonic machining apparatus according to claim 16, wherein the identifier is associated with packaging of the component.
 28. The ultrasonic machining apparatus according to claim 16, wherein the parameter is a parameter influencing the process parameters.
 29. The ultrasonic machining apparatus according to claim 28, wherein the parameter is the resonant frequency and the frequency bandwidth usable during operation and/or amplitude of the apparatus.
 30. The ultrasonic machining apparatus according to claim 29, wherein the apparatus is operated in a resonant vibration state
 31. A method for configuring an ultrasonic machining apparatus, wherein the apparatus contains a component selected from the group consisting of a generator, a converter, a booster, a sonotrode, an HV cable, a machine frame and a holding apparatus for the workpiece, wherein the method comprises the following steps: reading in, by a reading-in apparatus, an identifier which is associated with an individual parameter that characterizes the component; determining a parameter of the apparatus on a basis of the read-in identifier or on a basis of the data produced from the identifier, wherein the parameter allows the apparatus to be operated in a specified operating state; and adjusting the apparatus in accordance with the at least one parameter.
 32. The method according to claim 31, wherein the parameter is a parameter influencing the process parameters.
 33. The method according to claim 31, wherein the parameter is the resonant frequency and the frequency bandwidth usable during operation and/or amplitude of the apparatus.
 34. The method according to claim 31, wherein the apparatus is operated in a resonant vibration state.
 35. The method according to claim 31, wherein a frequency range and/or an amplitude of the generator is/are adapted.
 36. The method according to claim 31, wherein the method also comprises the steps of: conveying the identifier or the data produced on a basis of the identifier to a computing arrangement; and conveying the parameter determined on a basis of the identifier from the computing arrangement to the apparatus.
 37. A method for manufacturing a component for an ultrasonic machining apparatus, comprising the steps of: producing the component; measuring the component and producing a parameter characterizing the component; producing a unique identifier associated with the parameter; and associating the identifier with the component.
 38. A system having: at least one ultrasonic machining apparatus according to claim 16; a database; and a communication interface between the ultrasonic machining apparatus and the database for conveying information between the ultrasonic machining apparatus and the database.
 39. The system according to claim 38, wherein the database allows an identifier associated with at least one of the components of the ultrasonic machining apparatus and a data record that characterizes the component to be linked. 